My 9 year old daughter loves her new bunk bed! The bed is very sturdy. Assembly took a couple hours because there were so many parts, but it was very easy to put together. Each bunk has 22 metal rods (slats) holding the mattress, so there is no need to purchase bunkie boards or plywood to keep the mattress from sagging. I like that the top bunk is high enough for an adult to sit on the bottom bunk without bumping their head. The top bunk is pretty tall so make sure you measure your room before purchasing. With 8 foot ceilings, a smaller adult can just barely sit on the top bunk. I don't think my husband would be able to sit up on the top bunk at all. We also have to be very careful because the top bunk is level with the ceiling fan, but so far we haven't had any injuries! Overall, I think this is a great bunk bed and should last my daughter for many years. It also comes apart into 2 twin beds if needed.